Journal
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
Volume 254, Issue 2, Pages 532-549Publisher
ELSEVIER
DOI: 10.1016/j.ejor.2016.04.005
Keywords
Data envelopment analysis; Volatility; Forecast; Dynamic; Entropy
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Conventional data envelopment analysis (DEA) models are designed for measuring the productive efficiency of decision making units (DMUs) based merely on historical data. However, in many practical applications, such past results are not sufficient for evaluating a DMU's performance in highly volatile operating environments, such as those with highly volatile crude oil prices and currency exchange rates. That is, in such environments, a DMU's whole performance may be seriously distorted if its future performance, which is sensitive to crude oil price volatility and/or currency fluctuations, is ignored in the evaluation process. However, despite its importance, to our knowledge, there are no DEA models proposed in the literature that explicitly take future performance volatility into account. Hence, this research aims at developing a new system of DEA models that incorporate a DMU's uncertain future performance, and thus can be applied to fully measure their efficiency. (C) 2016 Elsevier B.V. All rights reserved.
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